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bloXroute

Principal Performance & Kernel Engineer

Sorry, this job was removed Sorry, this job was removed at 12:00 p.m. (PST) on Thursday, Jul 24, 2025
Remote
100K-150K Annually
Remote
100K-150K Annually

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bloXroute is seeking an experienced Senior DevOps Engineer who is passionate about kernel internals, hardware-level optimization, and high frequency network transport-not just configuring VMs. You will be at the frontline of designing the fastest, leanest, most reliable systems.

Responsibilities

  • Architect and automate bare-metal, zero-latency environments with customized Linux/Unix kernel tuning, real-time schedulers, and deterministic execution
  • Rip apart and optimize every subsystem: CPU affinity, IRQ routing, TCP/IP stack, NUMA balancing, context switch reduction, memory allocators, BIOS configs
  • Design, deploy, and manage high-bandwidth, low-jitter, zero-packet-loss networking setups
  • Own kernel bypass, SmartNIC offloads, RDMA, DPDK pipelines — if it touches a packet, you control it
  • Build battle-hardened telemetry (eBPF, perf, custom probes) to capture system metrics at nanosecond precision
  • Hunt and kill latency regressions with no mercy
  • Partner directly with hardware vendors and firmware engineers to squeeze every cycle out of silicon
  • Lead crisis-mode performance war rooms when stakes are highest.

Requirements

  • Master of Unix/Linux: You dream in syscalls and kernel parameters
  • Networking Savant: TCP, UDP, Ethernet, multicast, PTP — understood at the wire level
  • Code Warrior: You automate and hack in C, Python, Bash, Go — whatever gets it done
  • Hardware Whisperer: You know how CPU caches, NIC queues, PCIe buses, and memory hierarchies behave under pressure
  • Relentless Diagnostician: You bring scientific method discipline to debugging, benchmarking, and tuning.

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